Answer:
Man walks over, and man swims under. In times of war, it can be burned asunder. What is it?
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breath on this terrestrial ball.
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
What goes through a door but never goes in. And never comes out?
What do people want the least on their hands?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?